Simplified Analytical Circuital Model of Damper Windings Exploiting Symmetries

Nuzzo, S.; Bolognesi, P.; Galea, M.

Abstract

The damper windings of salient-pole, wound-field synchronous generators are currently attracting a renewed interest due to their impact on the machine efficiency and power quality, which was somewhat overlooked in the past. This paper focuses on the equivalent circuital modeling of damper windings. After recalling its main physical features, the general approach is first presented, permitting to define an equivalent circuit and to derive the related resistance and inductance matrixes whatever is the pattern of the cage bars. Further assumptions deriving from common or advanced features of damper windings are then analyzed, such as symmetrical, antisymmetrical, shifted and modulated position patterns. It is then shown how such assumptions can be exploited to simplify and shrink the equivalent circuital model of damper windings when analyzing realistic operating conditions.

Citation

Nuzzo, S., Bolognesi, P., & Galea, M. (2018). Simplified Analytical Circuital Model of Damper Windings Exploiting Symmetries. In Proceedings - 2018 XIII International Conference on Electrical Machines (ICEM) (400-406). https://doi.org/10.1109/ICELMACH.2018.8507262

• Conference Name: 2018 XIII International Conference on Electrical Machines (ICEM)
• Conference Location: Alexandroupoli, Greece
• Start Date: Sep 3, 2018
• End Date: Sep 6, 2018
• Acceptance Date: Mar 6, 2019
• Online Publication Date: Oct 25, 2018
• Publication Date: 2018-09
• Deposit Date: Apr 24, 2020
• Publicly Available Date: Apr 27, 2020
• Pages: 400-406
• Series ISSN: 2381-4802
• Book Title: Proceedings - 2018 XIII International Conference on Electrical Machines (ICEM)
• ISBN: 978-1-5386-2478-4
• DOI: https://doi.org/10.1109/ICELMACH.2018.8507262
• Public URL: https://nottingham-repository.worktribe.com/output/4332216
• Publisher URL: https://ieeexplore-ieee-org.ezproxy.nottingham.ac.uk/document/8507262
• Additional Information: © 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.